Audio and DVD Video for 16x9 TV?
" 1080p is the shorthand name for a category of HDTV video modes. The number 1080 represents 1,080 lines of vertical resolution (1,080 vertical scan lines),[1] while the letter p stands for progressive scan (meaning the image is not interlaced). 1080p can be referred to as full HD or full high definition although 1080i (interlaced) is also "Full HD" (1920x1080 pixels). The term usually assumes a widescreen aspect ratio of 16:9, implying a horizontal resolution of 1920 pixels ..." -
Wikipedia
" 720p is the shorthand name for a category of HDTV video modes. The number 720 stands for the 720 horizontal scan lines of display resolution (also known as 720 pixels of vertical resolution), while the letter p stands for progressive scan or non-interlaced. ... 720p has a widescreen aspect ratio of 16:9, a vertical resolution of 720 pixels and a horizontal resolution of 1280 pixels, or 1280x720, for a total of 921,600 pixels. ..." -
Wikipedia
Note the connections here at the
Apple Cinema Display page that include both, DisplayPort cable and USB cable (plus power)...
Note the screen resolution on this
16x9 Vizio Dell TV = "... Resolution: 1366 x 768 ... Display Format: 720p ... "
One can see the DVD video questions resolved by playing a DVD on a Mac with a 1920 x 1200, 16x9 computer monitor ... using the DVD player program, setting the "View" to "Actual Size", then "Double Size" ... which comes out to a ~ 720p display.
As one can see, using a modern, flat screen, high quality TV for a computer monitor still may come up a bit short in the resolution department = fine for DVD movies (as a modern TV is intended to be) ... but possibly lacking in the quality audio department in any case.
My advise is: output your Apple Mac audio to a good 24 bit digital to analog converter (DAC) and then on to a quality sound system.
My home system has a Samsung 16x9 TV ... but I leave the Samsung audio output completely "off" and do as above with a 24 bit DAC to the home stereo. My Mac Mini (with the older DVI connection to HDMI adapter and cable) and it does a fantastic job of reproducing DVD video on the Samsung ... But, yes, that Samsung TV comes up a bit short for the computer text and graphics.